If they legalized it in canada, they would lose money. Not to mention the restrictions of selling a legal product that supposedly causes cancer. If they keep it illegal, there's none of that.
To me it is no worse than ciggarette's, and much less harmful than alcohol. You can never OD on weed. But you can get alcohol poisoning and die. If they were ever gonna legalize it, they would have already done it.
In the USA, they can bust big time drug dealers, seize their assets (boats, cars, houses) and auction them off. Im not sure about Canada on that, but thats where a lot of the drug money is made by the government.
